/*
* Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
package javax.management.loading;
import static com.sun.jmx.defaults.
JmxProperties.
MBEANSERVER_LOGGER;
import java.util.
Iterator;
import java.util.
List;
import java.util.logging.
Level;
import javax.management.
MBeanServer;
import javax.management.
MBeanServerFactory;
/**
* <p>Keeps the list of Class Loaders registered in the MBean Server.
* It provides the necessary methods to load classes using the registered
* Class Loaders.</p>
*
* <p>This deprecated class is maintained for compatibility. In
* previous versions of JMX, there was one
* <code>DefaultLoaderRepository</code> shared by all MBean servers.
* As of JMX 1.2, that functionality is approximated by using {@link
* MBeanServerFactory#findMBeanServer} to find all known MBean
* servers, and consulting the {@link ClassLoaderRepository} of each
* one. It is strongly recommended that code referencing
* <code>DefaultLoaderRepository</code> be rewritten.</p>
*
* @deprecated Use
* {@link javax.management.MBeanServer#getClassLoaderRepository()}}
* instead.
*
* @since 1.5
*/
@
Deprecated
public class
DefaultLoaderRepository {
/**
* Go through the list of class loaders and try to load the requested
* class.
* The method will stop as soon as the class is found. If the class
* is not found the method will throw a <CODE>ClassNotFoundException</CODE>
* exception.
*
* @param className The name of the class to be loaded.
*
* @return the loaded class.
*
* @exception ClassNotFoundException The specified class could not be
* found.
*/
public static
Class<?>
loadClass(
String className)
throws
ClassNotFoundException {
MBEANSERVER_LOGGER.
logp(
Level.
FINEST,
DefaultLoaderRepository.class.
getName(),
"loadClass",
className);
return
load(null,
className);
}
/**
* Go through the list of class loaders but exclude the given
* class loader, then try to load
* the requested class.
* The method will stop as soon as the class is found. If the class
* is not found the method will throw a <CODE>ClassNotFoundException</CODE>
* exception.
*
* @param className The name of the class to be loaded.
* @param loader The class loader to be excluded.
*
* @return the loaded class.
*
* @exception ClassNotFoundException The specified class could not be
* found.
*/
public static
Class<?>
loadClassWithout(
ClassLoader loader,
String className)
throws
ClassNotFoundException {
MBEANSERVER_LOGGER.
logp(
Level.
FINEST,
DefaultLoaderRepository.class.
getName(),
"loadClassWithout",
className);
return
load(
loader,
className);
}
private static
Class<?>
load(
ClassLoader without,
String className)
throws
ClassNotFoundException {
final
List<
MBeanServer>
mbsList =
MBeanServerFactory.
findMBeanServer(null);
for (
MBeanServer mbs :
mbsList) {
ClassLoaderRepository clr =
mbs.
getClassLoaderRepository();
try {
return
clr.
loadClassWithout(
without,
className);
} catch (
ClassNotFoundException e) {
// OK : Try with next one...
}
}
throw new
ClassNotFoundException(
className);
}
}